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- Q1
The elements that make up a compound and the number of atoms of each element in a unit of the compound can be shown in a
chemical formula.
superscript.
subscript.
chemical symbol.
30sSPS2a - Q2
A group of atoms that acts together as one charged atom is a
negative ion.
crystal.
molecule.
polyatomic ion.
30sSPS2a - Q3
A(n) _______________ is a bond formed when many metal atoms share their pooled valence electrons.
polyatomic bond
metallic bond
covalent bond
ionic bond
30sSPS2a - Q4
In chemical formulas, the number of atoms in a unit of the compound is shown by numbers called
superscripts.
subscripts.
oxidation numbers.
hydrates.
30sSPS2a - Q5
A chemical bond that occurs when atoms share electrons is a(n) ______ bond.
magnetic
polyatomic
ionic
covalent
30sSPS2a - Q6
What is the correct formula for calcium oxide?
Ca2O2
CaO
Ca2O
CaO2
30sSPS2c - Q7
What is the correct name for Li2SO4?
lithium sulfate
lithium disulfide
lithium sulfide
lithium (II) sulfate
30sSPS2c - Q8
How many sodium atoms and how many oxygen atoms are there in a binary compound made from these two elements?
three sodium and one oxygen
two sodium and one oxygen
one sodium and two oxygen
one sodium and one oxygen
30sSPS2c - Q9
What is the charge of phosphate in K3PO4?
5+
1+
7-
3-
30sSPS2b - Q10
Which of the following is the correct formula for calcium nitrate?
Ca(NO3)2
Ca2(NO3)2
CaNO3
Ca2NO3
30sSPS2c - Q11
Sort to the correct type of bonds.
Users sort answers between categoriesSorting120s - Q12
Because a water molecule has a slight positive charge at one end and a slight negative charge at the other end, it is a polar molecule.
truefalseTrue or False30s - Q13
What is the total number of atoms in the compound Al2(SO4)3?
9
30
10
17
30sSPS2b - Q14
A group of atoms that acts together as one charged atom is a
negative ion.
molecule.
crystal.
polyatomic ion.
30sSPS2b - Q15
A group of atoms that acts together as one charged atom is a
Polar compounds
Ionic compounds
Covalent compounds
Metallic compounds
30sSPS2b